What is EN 10216-5 1.4404 CFD Stainless Steel Pipe?

Are you looking for EN 10216-5 1.4404 seamless stainless steel pipes suitable for pressure applications, the chemical industry, food processing, or industrial piping systems? The EN 10216-5 standard requires seamless pipes to be supplied in the solution-annealed condition and specifies particular delivery conditions (such as HFD, CFD, CFA, CFG, and CFP).

 

What is EN 10216-5 1.4404 2b Stainless Steel Pipe?

The EN 10216-5 1.4404 2B stainless steel pipe is a high-precision seamless pressure pipe designed for demanding pressure-bearing and heat-transfer applications in the chemical, pharmaceutical, and marine engineering sectors. Featuring a low-carbon, molybdenum-bearing alloy composition (Cr 16.5–18.5%, Ni 10.0–13.0%, Mo 2.0–2.5%, C ≤ 0.030%), it exhibits exceptional pitting corrosion resistance in chloride-rich environments and effectively prevents intergranular corrosion during welding. Available in a wide range of standard outside diameters (6–219 mm) and wall thicknesses (0.5–20 mm), each pipe undergoes 100% non-destructive testing Eddy Current Testing or Ultrasonic Testing and hydrostatic testing (up to 20.7 MPa), and is supplied with an EN 10204 3.1 material test certificate to ensure its pressure-bearing integrity.

EN 10216-5 1.4404 Stainless Steel Pipe Specification

Feature	Details
Grade	1.4404 / X2CrNiMo17-12-2
UNS Designation	S31603 (Equivalent to 316L)
Standard (Seamless Pipe)	EN 10216-5 / ASTM A312
Standard (Welded Pipe)	EN 10217-7 / ASTM A312
Material Type	Austenitic Stainless Steel
Microstructure	Single Phase Austenite (Non-magnetic)
Outer Diameter (OD)	6.0 mm – 630.0 mm (1/8" – 24")
Wall Thickness (WT)	0.5 mm – 40.0 mm (SCH 5S, 10S, 40S, 80S, 160)
Length	6000mm, 12000mm, or Custom
End Finish	Plain End, Beveled End, Threaded

 

Chemical Composition (%)

The key feature of 1.4404 is the addition of Molybdenum and the Low Carbon content.

Element	Content (%)
Chromium (Cr)	16.5 – 18.5
Nickel (Ni)	10.0 – 13.0
Molybdenum (Mo)	2.0 – 2.5
Carbon (C)	0.030 max
Nitrogen (N)	0.11 max
Manganese (Mn)	2.00 max
Silicon (Si)	1.00 max
Phosphorus (P)	0.045 max
Sulfur (S)	0.015 max

 

Mechanical Properties (At Room Temperature)

Values according to EN 10216-5 for pipes in the solution-annealed condition.

Property	Metric Value
Tensile Strength (Rm)	500 – 700 MPa
Yield Strength (Rp0.2)	≥ 200 MPa
Yield Strength (Rp1.0)	≥ 235 MPa
Elongation (A5)	≥ 40% (Longitudinal)
Hardness (Brinell)	≤ 215 HB

 

1.4404 Equivalent Grades

European (EN)	USA (AISI/ASTM)	Japanese (JIS)	Chinese (GB/T)
1.4404	316L	SUS 316L	022Cr17Ni12Mo2
1.4401	316 (Standard Carbon)	SUS 316	06Cr17Ni12Mo2

 

EN 10216-5 Test Classes

Class	Description	OD Tolerance	WT Tolerance	Typical Use
TC2 (general)	Hot-finished or cold-finished	±1 % (small OD) / ±0.5 % (large OD)	±12.5 % (thin) / ±10 % (thick)	General pressure piping
TC1 (precision)	Cold-drawn (tighter)	±0.5 % (small OD) / ±0.3 % (large OD)	±10 % (thin) / ±7.5 % (thick)	Hydraulic, instrumentation, heat-exchanger tubes

 

Applications of 1.4404 2B Stainless Steel Pipes

CIP (Clean-in-Place) pipe systems

Heat exchangers and condensers

Process lines for acidic or saline media

Water desalination plants

Underground piping in coastal areas

Medical gas pipeline systems

 

If you would like, please let me know:
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the fluid the pipe will come into contact with or the operating environment;
and whether you need specific lengths or quantities.
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 Quality Control

For EN 10216-5 1.4404/316L seamless stainless steel pipes, quality control encompasses chemical composition, mechanical properties, dimensional accuracy, surface condition, and leak tightness; testing for tensile strength, yield strength, and elongation is conducted in accordance with relevant standards. Additionally, inspections cover outside diameter, wall thickness, length, and straightness, alongside hydrostatic, eddy current, or ultrasonic testing based on the specified test category. Documentation accompanying the shipment includes an EN 10204 3.1 Material Test Certificate (MTC) and heat number traceability information.

Standard packaging

Our EN 10216-5 1.4404 stainless steel pipes are prepared for international transportation with emphasis on preventing moisture, contamination, surface scratches and end damage. Pipes are normally supplied in bundles with protective plastic end caps, securely strapped and wrapped with waterproof or PE material; additional wooden supports, pallets or wooden cases can be used for long-distance shipments and container loading. Each bundle is clearly marked with grade, dimensions, heat number, quantity and order identification to maintain traceability from production to delivery.

 

FAQ

Is 1.4404 the same as 316L?
Generally yes in grade identification: 1.4404 corresponds to X2CrNiMo17-12-2 and is commonly identified with 316L / UNS S31603. However, the applicable standard still matters because EN and ASTM specifications have different technical requirements.

 

What is 1.4404 CFA stainless steel pipe?
CFA means cold finished, bright annealed. It is one of the delivery conditions specified by EN 10216-5 and provides a metallically bright surface.

 

What is 1.4404 CFD stainless steel pipe?
CFD means cold finished, heat treated and descaled. The resulting surface is described as metallically clean.

 

Is 1.4404 better than 304L?
For many applications involving chloride exposure or more aggressive process environments, 1.4404/316L offers better corrosion resistance because of its molybdenum content. However, 304L can be more economical for less aggressive environments.

 

Can 1.4404 stainless steel pipe be welded?
Yes. The low-carbon 1.4404/316L grade is widely used for welded equipment and piping. Welding procedures should nevertheless follow the project specification and applicable welding procedure qualification.

What is the difference between EN 10216-5 and ASTM A312?
Both standards cover stainless steel piping/tubes, but they belong to different standards systems and have different technical requirements. EN 10216-5 1.4404 should not automatically be treated as interchangeable with ASTM A312 TP316L without confirming the project specification.

 

Is EN 10216-5 1.4404 suitable for pressure applications?
Yes. EN 10216-5 is specifically a standard for seamless stainless steel tubes for pressure purposes. The actual allowable pressure depends on OD, wall thickness, temperature, design code and material properties.